Engine-CodesRAM – B1D31 RAM

B1D31 RAM Code - Mirror Horizontal Motor Control Circuit Open

Quick Answer

The B1D31 RAM diagnostic trouble code (DTC) indicates that there is an issue with the mirror horizontal motor control circuit being open. Common causes include Faulty mirror horizontal motor, Wiring or connector issues in the mirror control circuit, Blown fuse related to the mirror control system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1D31 RAM indicates Mirror Horizontal Motor Control Circuit Open.
Common causes
Common causes include Faulty mirror horizontal motor, Wiring or connector issues in the mirror control circuit, Blown fuse related to the mirror control system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B1D31 RAM Description

The B1D31 RAM diagnostic trouble code (DTC) indicates that there is an issue with the mirror horizontal motor control circuit being open. This means that there is a malfunction in the electrical circuit that controls the horizontal movement of the mirror. The mirror horizontal motor is responsible for adjusting the mirror's position horizontally, allowing the driver to have a clear view of their surroundings.

OBDII Code B1D31 RAM - Mirror Horizontal Motor Control Circuit Open
B1D31 RAM Code - Mirror Horizontal Motor Control Circuit Open

Common Causes of B1D31 RAM

  1. Faulty mirror horizontal motor.
  2. Wiring or connector issues in the mirror control circuit.
  3. Blown fuse related to the mirror control system.
  4. Corrosion or damage to the electrical connections.
  5. Issues with the mirror control switch or module.

Symptoms of B1D31 RAM

  1. Inability to adjust the mirror horizontally.
  2. Mirror stuck in one position.
  3. Erratic movement of the mirror.
  4. Mirror not responding to control inputs.
  5. Warning light on the dashboard related to mirror control.

How to Fix B1D31 RAM

  1. Begin by inspecting the mirror horizontal motor, wiring, and connectors for any visible damage or corrosion.
  2. Test the mirror horizontal motor using a multimeter to check for proper functionality.
  3. Check the fuse related to the mirror control system and replace if necessary.
  4. Repair or replace any damaged wiring or connectors in the mirror control circuit.
  5. If the issue persists, consider replacing the mirror control switch or module.

Cost to Fix B1D31 RAM

The typical repair costs for addressing the B1D31 RAM code can vary depending on the specific cause of the issue. In general, replacing a faulty mirror horizontal motor can cost between $100 to $300, including parts and labor. If the issue is related to wiring or connectors, the cost may range from $50 to $150 for repairs. Additional costs may apply if the mirror control switch or module needs to be replaced.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1D31 RAM Code

1. What are the common symptoms of OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

The common symptoms include the mirror not moving horizontally when adjusting it using the controls, or the mirror being stuck in one position.

2. What can cause the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

This code is usually caused by a malfunction in the wiring or connectors related to the horizontal motor control circuit of the mirror.

3. How can I diagnose the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

Diagnosing this code involves checking the wiring, connectors, and the mirror motor itself for any signs of damage or malfunction using a multimeter and a wiring diagram.

4. Can a blown fuse cause the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

Yes, a blown fuse related to the mirror's horizontal motor control circuit can trigger this code. Make sure to check and replace any blown fuses as part of the diagnostic process.

5. What are some repair tips for fixing OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

Repair tips include checking and repairing any damaged wiring or connectors, replacing the mirror motor if necessary, and clearing the code with an OBDII scanner after the repairs are done.

6. Is it safe to drive with the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

It is generally safe to drive with this code, as it primarily affects the functionality of the mirror adjustment. However, it is recommended to address the issue promptly to maintain proper visibility while driving.

7. Can the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open be intermittent?

Yes, this code can sometimes be intermittent, especially if the issue is related to loose wiring or connectors. It is essential to monitor the mirror's functionality and address the problem when it occurs consistently.

8. Will resetting the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open make it go away permanently?

Resetting the code may temporarily clear it, but if the underlying issue causing the code is not resolved, it is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.

9. Can extreme weather conditions cause the OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

Extreme weather conditions can potentially exacerbate existing issues with the mirror's horizontal motor control circuit, leading to the triggering of this OBDII code. Ensure proper weatherproofing of the wiring and connectors.

10. How much does it typically cost to repair OBDII code B1D31 RAM titled Mirror Horizontal Motor Control Circuit Open?

The cost of repairing this code can vary depending on the extent of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed. It is recommended to obtain quotes from different repair shops for an accurate estimate.

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